A rectangular field with sides as shown below has to be fenced all around. If fencing posts have to be fixed at 1-metre intervals, how many posts are needed?

1. 167
2. 334
3. 668
4. 6840​

A rectangular field with sides as shown below has to be fenced all around If fencing posts have to be fixed at 1metre intervals how many posts are needed1 1672 class=